Messages in this thread | | | Date | Thu, 3 Mar 2011 11:26:04 +0900 | From | KAMEZAWA Hiroyuki <> | Subject | Re: [PATCH 5/8] Use correct numa policy node for transparent hugepages |
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On Wed, 2 Mar 2011 16:45:25 -0800 Andi Kleen <andi@firstfloor.org> wrote:
> From: Andi Kleen <ak@linux.intel.com> > > Pass down the correct node for a transparent hugepage allocation. > Most callers continue to use the current node, however the hugepaged > daemon now uses the previous node of the first to be collapsed page > instead. This ensures that khugepaged does not mess up local memory > for an existing process which uses local policy. > > The choice of node is somewhat primitive currently: it just > uses the node of the first page in the pmd range. An alternative > would be to look at multiple pages and use the most popular > node. I used the simplest variant for now which should work > well enough for the case of all pages being on the same node. > > Acked-by: Andrea Arcangeli <aarcange@redhat.com> > Signed-off-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
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